In the Japanese version of "don't drink and drive" slogan, 【乗るなら飲むな】 (also 【飲んだら乗るな】), what part of speech is the な that follows the plain verb 飲む (or 乗る in the second variation) to form the negative ...

Is な particle allowed to be used after common nouns (i.e non na-adjectives) for whatever reasons, e.g. cuteness, trendy, humor etc?
Dictionary@goo website seems to use (normal noun)+な in a couple of ...